Spring.



Patented Nov. 25.4902. g

M. n. NABEB.

SPRING. (Applicatioh mod Feb. 37, 1962.

2 Sha nashat 2.

(No Model.)

MOSES H. NABER, OF CHICAGO, ILLINOIS, ASSIGNOR TO EDWARD G. PAULING, OFCHICAGO, ILLINOIS.

SPRING.

SPEGIFIGATION forming part of Letters Patent No. 71 ,225, dated November25, 1902.

Application filed February 27, 1902, Serial No. 95,884. (No model.) I

To all whont it may concern..-

Be it known that I, Moses H. NABER, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented certain new and useful Improvements in Springs, of which thefollowing is a specification.

The object of my invention is to provide an improved spring adapted foruse in all structures which contemplate the employment of springs whereit is desired to provide a yielding connection between alower base andan upper body of any character whatever; and my invention consists in animproved form of spring adapted to be employed in such relation andlocation.

lVhile it will be apparent from the accompanying disclosure of myinvention that its range of use is not limited to any special class ofstructure, such as chairs or seats, I have illustrated its applicationand use in connection with chairs as a convenient type of device towhich it is well adapted.

In the accompanying drawings, which illustrate exemplifications of myinvention, Figure 1 is a side View of a chair provided with springsconstructed in accordance with my invention. Fig. 2 is a top plan viewof the base of the chair of Fig. 1. Fig. 3 is a bottom plan or invertedview of the chair-body of Fig. 1. Fig. 4 is a side view of a chairprovided with a similar form of spring to that of Fig. 1, but with thedirection of the wings reversed. Fig. 5 is a top plan view of the formof spring employed in the construction shown in Fig. 1. Fig; 6 is a sideview of the same, and Fig. 7 is a top plan view of a similar formof-spring having the coils extended in opposite directions.

In the drawings, A designates achair-body or seat-frame, and B a base,which may be of any desired construction, and exemplify the upper andlower portions of a structure between which an elastic or yieldingconnection is provided by the springs of my invention.

The springs are made of steel wire and are arranged and disposed betweenthe base and the body in any manner suitable to the use for which thestructure is intended. For example, in the application of the springs tochairs, as shown in the'drawings,the springs are placed oppositely atthe 'front and rear.

The springs are sectional in construction, and the section sof eachspring is formed from a suitable length of wire consisting ofahorizontal cross-piece 1 of a length suitable to the size of thestructure with which the springs are to be associated. At the oppositeends of the cross-piece the wire is slightly bent in an angulardirection, as at 2, and is then extended laterally to formthe legs 3,which are substantially in the horizontal plane of the cross-piece 1. Atthe ends of the legs the Wire is bent downwardly to form wings bearingupon the structure and to furnish means for attaching the springsthereto. In the preferred form of this exemplification the end of eachleg 3is developed into one or more vertical coils 4, which preferablyare angular to the legs and extend in the same general direction as dothe angular portions 2. The wires in extension of the coils at the lowerportions thereof are directed inwardly toward each other to form thearms 5 and terminate in wings 6, which bear upon the frame of thestructure. The wings are formed by curving the wire into suitable shapeto provide an extended bearing-surface, and theinner ends of the wireare bent around the arms 5 and extended to the center of the wings,where they terminate in eyes 7 to receive attaching-bolts, to which thenuts 8 are secured. Each of the portions .9 of each spring is formedwith a wing 9, similar-in all respects to the wings 6 of the portion 3,and the wire extends laterally in the plane of the wing to formoutwardly-directed arms 10, which preferably are developedinto one ormore vertical coils 11. The wire extends inwardlyfrom the coil at thelower portions thereof to form the leg 12 and is then coiled one or moretimes about the cross-piece l, as at 13, the end being coiled, as at 14,about one of the angular portions 2 of the section 3, whereby thedisplacement of the section 5 from its position upon the crosspiece 1 isprevented. The coil 14 also limits the torsional effect or movement ofthe arms and legs. It is understood that two sections 3 are employed,one at each end of the continuous section.

The wings of the sections are lateral to the line of the cross-piece orto the center line of the unitary structure and the wings of thesections 5' on the opposite side of this central line with relation tothe wings of the other sections. The wings of the assembled sections arein horizontal planes difierent from that of ,this central line orcross-piece and respectively on opposite sides thereof, the separationof the wings being regulated by the size of the coils 4 and 11, wherebythe body and base are supported out of contact to allow the movement ofthe former relative to the latter.

The coils 11 of the sections 8 may be extended in substantially the samedirection as the coils 4 of the portions 3, as shown in Fig. 5, or theymay be extended in an approximately opposite direction, as shown in Fig.7, to form divergent coils. With the latter form it is found in practicethat the body has more sidewise yield or movement and also an easierperpendicular action, while the former is best adapted where aforward-and-back or rocking action is desired.

In assembling the springs upon the body and base of the associatedstructure the continuous section 8 is preferably employed as the loweror base member, which is secured to the base by means of suitable boltsb, passing through the openings Z) and the eyes 7. The sections 3' arethen secured to the bodyA by bolts a, passing through the openings a andthe corresponding eyes of these sections. The springs may be assembledwith the wings of the base-section s intermediate the cross-pieces andwith the wings of the sections 3 relatively Widely separated, as in Fig.l, or the wings of the sections .9 may be reversed with reference totheir crosspieces and be arranged outside the area there of and with thewings of sections 3 relatively nearer together, as in Fig. 4. The wingsform extended bearing-surfaces and are clamped tightly against theassociated parts of the base or frame by the passage of the wire aroundthe arms 5 and 10, whereby the strain is distributed around theperiphery of the wing. I

The springs may be set near together or far apart to provide for use instructures of various sizes, it being understood that theexemplification shown in the drawings and herein described is employedmerely to demonstrate the general purpose of the use of the inventionbetween any suitable base and superimposed frame to which it is desiredto give a yielding motion. By setting the wings nearer together the bodyis given an easy and uniform rocking movement, as for chairs, &c., andby separating the springs this motion is converted into a lesscurvilinear motion.

Having described my invention, I claim-- 1. A spring consisting of acontinuous section having a cross-piece provided with angular ends,wings lateral to the crosspiece and in a different plane therefrom, andsections each having a wing and interlocking with'one of the angularends of the crosspiece.

2. A spring consisting of a section having a cross-piece provided withangular ends, lateral wings at the ends thereof, and a section securedto each angular end of the crosspiece and having a wing, the wingsextending inwardly and the wings of the first section being on theopposite side of the cross-piece with relation to the wings of the othersections.

3. A spring consisting of a section having a cross-piece provided withangular ends, wings on the cross-piece, and vertical coils between thewings and ends, and sections each having a wing and upper and lowermembers with intermediate vertical coils, the end of the wire of eachsection being mounted on the cross-piece and bent about one of theangular ends.

In testimony whereof I affix my signature in presence of two witnesses.

MOSES H. NABER. Witnesses:

E. K. GUSTAFSON, J. MCROBERTS.

